Carbureter.



PATBNTED FEB. 17.1903.

A. H. RIFE & J. R. GARPER.

GARBURBTBR. -APPLICLAIIOH FILED JUNE 18, 1902.

2 SHEETS-SHEET 2.

' 'No MODEL.

UNITEDV STATES PATENT ARCHIE I'LRIFE AND JAMES R. CARPER, OF DALLASCITY, ILLINOIS.

CARBURETER.

SPECIFICATION forminglpart of Letters Patent No. 720,968, dated February17, 1 903.

Application filed June 18, 1902. Serial No. 112,160. (No model.)

To all whom t may con/cern:

Be it known that we, ARCHIE. H. RIFE. and JAMES Rnnrnacitizens of theUnited States, and residents of Dallas City, in the county of Hancockand State of Illinois, have invented new and useful Improvements inCarburet-Y ers, of which the following is a full, clear, andV in whichsimilar characters of reference indicate corresponding parts in all thefigures.

Figure 1 is an end elevation, partly in section, of a stove equippedwith our invention. Fig. 2 is a fragmentary central section, somewhatenlarged, showing certain details of the carbureter proper. Fig. 3 is aplan' view, partly in section, of one of the valves for regulating theiiow of hydrocarbon; and Fig. 4 is a fragmentary horizontaly sectionupon the line a: cc of Fig. 2, showing means for'operating the valvecontrolling the supply of air to the mining-chamber.Y

The frame 1 of the stove is provided with braces 2 2, a shelf 3, and atop 4, having apertures 5 in the usual manner.

6 is a hood covering the burner 7, which is connected with longitudinalrods 8 and is provided with air-holes 9. Located centrally at the bottomof the burner 7 is a short tube 10. The hood 6 is spaced from the burner7 by means of stays 11 and is connected directly with the air-passage12, as shown more particularly in Figs. 1 and 2. A smaller tube 13 isconnected at its lower end with a sleeve 14, provided withhorizontalslits 15, constitilting a subliame-burner. This sleeve is integrallyconnected at 16 with a vaporizingcup 17, the arrangement being such thatthis cup is heated by the subliame. Within the sleeve 14 and extendingcentrally across the saine is a horizontal rod 1S, from which depends avertical rod 19. Adj ustably mounted upon the lower end of this rod is aconvex plate 20, provided with air-holes 21 and secured upon the rod 19by means of an adjustable nut 22. The arrangement is such that Vfrom theburner.

lby turning the uut 22 the plate 2O may be raised or lowered slightly,thereby regulating the supply of air to the tube 13.

An exit-pipe 23 is provided for the purpose of carrying off disagreeableodors arising This exit-pipe 23 is provided with a series of nipples 24,one of which is shown in Fig. 1, and with a T 25, the arrangement beingsuch that one of the nipples 24 projects upwardly, as shown in Fig. 1,into the immediate vicinity of each of the burners.

A hollow pau-like member 26 is pivoted at 27 upon a plate 28, which isin turn secured upon the wall 29 of the stove. The object of thisarrangement is to enable the pan-like member 26 to be elevated into theposition indicated by dotted lines in Fig. 1 and to be depressed intothe position indicated by full lines in said figure. The exit-pipe 23 ispreferably connected with a chimney, which has of course more or lessdraft, so that the vapors arising fromthe burner are covered by thepan-like member drawn through the nipples 24: and carried off to thechimney.

The gasolene-tank 30 is provided with a hand-valve 31 and is connectedwith a pipe 32 in the usual manner. This pipe is provided with a T 33,which leads to all of the burners. From the T 33 a pipe 3i leads to thecasing 35, which is connected, preferably integrally, with the tube 36.j

A mixingchamber 37 is provided with hemispherical ends ll1 and also withsupporting-lugs 40. 'Inside of this chamber is a vaporizing-plate33,connected with a cage 39, of gauze, which rests upon thesupporting-lugs Ll0. The object of1 this arrangement is to provide alarge vaporizing-surface. IVithin the lower hemispherical end 41 aremounted a number of separate wicks 42, made, preferably, of asbestosandsupported by a ring 43. A pipe 44, provided with a lip L15, extendsobliquely downward from the lower hemispherical end 4l of themixing-chamber to the vaporizing-cup 17, as indicated more particularlyin Fig. 2. When the hydrocarbon liquid is discharged from the tube 36upon the plate 3S, it spreads downward overthe gauze cage 39 and iswholly or partially vaporized. Should any portion fail to vaporize, itaccumulates in the bottom of the mixing-cham- IOO ber and is thereuponcarried up by capillary attraction into the asbestos wicks 42, which ofcourse ail'ord a great extent of surface, and thus facilitate readyvaporization. Should any portion of the hydrocarbon still remainunvaporized, it ilows through the tube 44, down into the vaporizing-cup17, immediately adjacent to the sublame, and is there vap-y orized.

Within the casing 35, near the top of the apparatus, isa cavity 46, withwhich the pipe 34 is normally in communication. The upper end of thiscavity acts as a valve-seat for the jewel-valve 47. This valve ismounted upon the revoluble stem 48, which is provided with a thread 49,this thread acting as a bearing upon which is tted an adjusting-nut 50,which may be used or not, as desired.

The valve-casing 5l is connected by ajoint 52 to the upper end of themixing-chamber and is also connected by an elbow 53 to the pipe 12.Within this casing is a revoluble valve 54, provided atits upper endwith a recess 55. The lower end of the valve-stem 48 is provided with anangular portion 56, which is engaged by a bolt 57. The object of thisarrangement is to allow the valve-stem 48 to have a slight verticalplay, sufticient to compensate for the vertical movement due to therevolution ot" the threaded portion of the Valve-stem in the casing 35.

' A clamp 58 is provided with a handle 59 and with a bolt 60, wherebythe stem 48 may be-rotated by merely manipula-ting the handle 59.

The general operation of our device is as follows: The tank 30 is whollyor partially illed with gasolene or other hydrocarbon. The handle 59 isturned slightly to the left, thereby lowering the jewel-valve 47 andpermitting a slight ingress of hydrocarbon through the tube 36 into themixing-chamber. The same movement of the handle 59 rotates the valve 54,and thereby opens communication between the mixing-chamber 37 and theair-pipe 12. The degree to which the pipe 34 is opened by thejewel-valve is commensurate with the degree to which'the valve 54 opensthe air-pipe. The idea is to make the supply of air to themixing-chamber commensurate with the supply of liquid hydrocarbonthereto. Independently of this action, which is in a sense automatic,however, the handle-valve 37a (see Figs. 2 and 3) may be adjusted so asto control the supply of liquid through the pipe 36. There is at alltimes a supply of hydrocarbon vapor in the mixing-chamber37, for thereason that whenever one or more of the flames are extinguished theVapor remaining in the mixing-chamber is not wasted or allowed toescape, but is retained for future use. It is therefore not necessaryfor any part of the apparatus to become heated in order that the re maybe lighted. Suppose now that the main flame and the subilame are lightedin the usual manner. The hood 6 is thereby heated, and of course air isdrawn up into the hood and also heated. This air lows in two directions,a part going through the holes 9 to the main burner and another partgoing through the pipe l2 to the mixing-chamber, where it is admittedwith a Vapor constantly being formed within said chamber, the ingress ofheated air of course volatilizing the liquid hydrocarbon falling uponthe plate 38 and spreading over the gauze cage 39. When the flames areextinguished, the burner remains warm for some time; but as the valve 54is closed no air can enter through the pipe l2. All of the air thereforepasses through the holes 9, thereby enabling the burner to cool quiterapidly. As above explained, any odors which may arise from the burnerswill be carried off by the pipe 23, the more readily if the hood 6 isheated and is thereby caused to promote circulation of air from thevicinity of each burnerto the exit-pipe 23.

It is not necessary to close the pipe 44 in any event, for the reasonthat if the pipe 12 is closed by the valve 54 nothing can escape fromthe mixing-chamber.

It will be noted that the vaporization caused by the carbureter is verycomplete. There are, in effect, four distinct vaporizing operations, towit: First, the plate 38 being in immediate proximity to the incomingair and heated thereby will vaporize considerable quantities of thehydrocarbon; secondly, the gauze cage, which is also heated to a greateror less eX- tent, affords an enormous surface likewise tending topromote vaporizing; thirdly, the asbestos wicks acting by capillaryattraction perform a somewhat similar office by increasing the surface;fourthly, any liquid hydrocarbon flowing through the tube 44 into thevaporizing-cup 17 is brought to a point immediately adjacent to thesubllame,and thereby necessarily vaporized.

We tind that this method of vaporizing is very effective and renders theadmixture of the air and vapor far more perfect than is attained by manyother devices.

lt will be observed that our carbureter employs flames which can beinstantly ignited and instantly extinguished. It will also be observedthat no matter .how quickly the valves may be opened or how abruptly theflames may be lighted the admiXture of the air and hydrocarbon vapor fedto the llame is always thorough no matter if some time has elapsed sincethe stove was last used.

Having thus described our invention, we claim as new and desire tosecure by Letters Patentl. A carbu reter, comprising a source of liquidhydrocarbon, a mixing-chamber, a tube connecting the same with saidsource of liquid hydrocarbon and provided with a revoluble valve, a tubefor admitting air into said mixing-chamber,said tube being likewiseprovided with a revoluble valve,a revoluble stem 'ICO IIO

connected with both of said valves, and a handle for actuating saidstem, thereby operating said valves sim ultaneonsly.

2. A carburetor, comprising a source of liquid hydrocarbon, amixing-chamber, a tube connecting the same with said source of liquidhydrocarbon, a needle-valve seat mounted upon said tube and providedwith a thread, a longitudinal needle valve engaging said valve-seat andprovided with a thread engaging said thread of said valve-seat, saidneedle being normally free to revolve and to Amove longitudinally in thedirection of its axis, a tube for admitting air to said mixing-chamber,a revoluble valve mounted within said tube, and mechanism connected withboth of said valves for actuating the same simultaneonsly.

3. A carbu reter,com prisinga mixing-chamber provided with a concavebottom and with supports, a gauze member mounted Within saidmixing-chamber and resting upon said supports, means for spreading aliquid hydrocarbon upon said gauze member, a plurality of lamp-ivickssuspended Within said chamber and depending into said concave bottom,and an inlet for admitting air to said mixingchamber, the arrangementbeing such that any liquid hydrocarbon which trickles down- 1 Y wardfrom said gauze member gathers in said concave bottom and is absorbed bysaid lampwicks.

4. A carburetor, comprisinga source of liquid hydrocarbon, amixing-chamber, a tube connecting the same with said source of liqnidhydrocarbon, a needle-valve seat mounted upon said tube and providedwith a thread, a longitudinal needle-valve engaging said valve-seat andprovided with a thread engaging said thread of said valve-seat, saidneedle being normally free to revolve and to move longitudinally in thedirection of its axis, a tube for admitting air to said mixing-chamber,a revoluble valve mounted Within said tube for governing the carryingcapacity thereof, mechanism connected with both of said valves foractuating the same, and a movable conpling for permitting saidlongitudinal movement of said valve.

ln testimony whereof We have signed ou names to this specication in thepresence of two subscribing witnesses.

ARCHIE H. RIFE. JAMES R. CARPER.

Witnesses:

W. N. BLISS, ROY C. HALLOWELL.

